Automatic oil and air regulator.



Patented M an 4, I902.

run-cu, a c.

r w. PARFITT.

AUTOMATIC (ML AND AIR REGULATOR.

Ill-Il (Application filed Oct. 14. 1901.)

WWWIYIIIII$ IMIA (No Model.)

.F zg E oil should be maintained at a certain depth tenance of the proper amounts of oil and air UNITED STATES PATENT OFF-ICE- FRANK WV. PARFITT, OF LOUISVILLE, KENTUCKY.

AUTOMATIC on. AN

D AlR REGULATOR.

$EEGIFICATION forming part of Letters Patent No. 694,886, dated March 4, 1902.

Application filed October 14:, 1901.

T0 aZZ whom it may concern:

Be it known that I, FRANK W. PARFITT, of Louisville, in the county of Jefferson and State of Kentucky, have invented certain new and useful Improvements in Automatic- Oil and Air Regulators; and I herebydeclare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form part of this specification.

This invention is an improved automatic oil and air regulator for oilburning apparatus; and it is especially adapted for use with the oil-burning apparatus known as the Olaybourne oil-burner, but is useful in connection with other oil-burning apparatus and for other analogous purposes in the arts where automatic regulation of air and liquids is desired. In the Glaybourne oil-burning apparatus the oil is supplied to the burners from a stand-pipe or reservoir, in which under a certain air-pressure, and it is desirable to maintain the depth of oil and the airpressure as nearlyv uniform as possible to insure best results. As such apparatus has heretofore been constructed it has been generally necessary to watch the gage-glasses and regulate the amount of air and oil in the reservoir by hand, for at times the pump will inject too much oil into the reservoir, forcing the air out entirely, or it may pump too much air and force the oil entirely out, these fluctuations in amount of oil and air causing irregular combustion at the burners.

, The object of my invention is to provide an automatic regulator for insuring the mainin the reservoir; and the invention therefore consists in the novel construction ot the-regulator, as hereinafter described and claimed, and in the accompanying drawings I have illustrated such regulator in connection with a Glaybourne' oil-burning apparatus to enable the utility and construction of my inven-v tion to be clearly understood; but I do not restrict myself to the use of my regulator with any particular make or kind of apparatus.

In said drawings, Figure 1 is a View of partof a Claybourne oil-burning apparatus with m y automatic regulator adapted thereto. Fig.

Serial No. 78,653. on model.)

an air-pipe d with the upper end of the reservoir A, so that overpressure of air inthe stand-pipe will cause the .governor to shut off steam from the oil-pump. E is a glass gage on the upper end of the stand-pipe to determine the proper level of oil therein, the.

black portion of the gage indicating the desired normal level of oil. It should be understood that these parts are all'old and well known and are merely indicated in drawings to assist in explaining one useful application of my improved automatic oiland air governor,-which I will now describe.

F designates a hollow chamber provided with alarge screw-threaded nipple f at one side, which is screwed into a suitable opening in the reservoir A at the desired oilline therein. On opposite sides of this casing are valve-casin gs G G, which are preferably conically. bored and provided with threads g g, tapped into'diametrically opposite openings in oppositesides of the chamber F, as shown. These casings are provided with throughports g g respectively, as shown.

lVithin the casings G G are fittedconical valves H H, which project slightly through casingsG G and are retained by means of washers'h, fitted over their smaller ends, and tap-bolts h', passed through the washers and engaging threaded sockets in the ends of the valves'H H, as shown. The inner ends of valves H H project through their casings and into chamber F and are fitted into the ends of a sleeve I, extending aerossthe chamber F, and secured to said sleeve by tap-nuts i or in other proper manner, so that the valves must rock with the sleeve. Secured rigidly to the sleeve is a red I, which projects into the stand-pipe and is provided with a float B desby'a pipe J with the pumping-chamber of pump B, pipe .J having a check-valve j The other end opens into .the atmosphere. One end of port g of valve G connects with the interior of the reservoir A above the chamber F by a pipe K, while the other end opens to'the atmosphere. Neither valve G or G has any comm unication with the reservoir through chamber F, the latter in the construction shown being merely a means for retaining the valves in position and aifordinga simple means of connection between the float on the interior ofthe reservoir A and the valves on the exterior thereof.

Operation: The casing F should be attached to the reservoir A at the normal line therein, so that when the float-rod I is horizontal the oil and air pressures will be at'the desired normal stage and both Valves G G closed. The governor D is set by springs or weight (according to the make of governor) so as to keep the normal pressure of air in reservoir at about twenty-five pounds. Now if the oil is withdrawn so rapidly as to lessen the air-pressure in the reservoir A the governorvalve will admit more steam to the pump and oil will be injected more rapidlyinto the reservoir. If the desired amount of air in the reservoir be decreased in any way-as, for instance, by escaping with the oil-it is necessary to replenish the air, otherwise the oil will assume too high a level, and, on the other hand, if the air accumulates too rapidly eventually the oil-level would be forced too low for proper normal operation of the apparatus. My regulator automatically provides against either contingency, as follows: The valves H H are so adjusted that when floatrod 1 is horizontal neither valve will be opened. Now if the oil-level is forced down by overpressure or unwonted accumulation of air the float in descending rocks sleeve I so as to open valve H, whereupon air escapes from the reservoir through pipe K and valve H, reducing the pressure, and the pump injects oil rapidly into the reservoir until the desired oil-level is reached, whereupon the float closes valve H, valve H having remained closed during this time. If the oil should accumulate too rapidly, as might happen upon sudden shutting 01f of a number of burners, the float rises, thereby opening valve H and allowing air to pass through pipe J to the pump 13 and be injected with the oil into the reservoir until the oil is restored to the normal level, when the float again closes both valves. The regulator thus automatically maintains a practically constant and uniform level of oil and air pressure in reservoir, making no appreciable difference in the supply to burners Whether one or more be suddenly turned on or cut off, thus insuring a more steady and uniform heat, which is essential to economical firing with oil.

The back plate F of the regulator may be removable, as indicated in drawings, so that the valves H H can be set or adjusted independently by partially rotating them, so as to be open more or less quickly by variations in the position of float.

Having thus described my invention, what I therefore claim as new, and desire to secure by Letters Patent thereon, is-

1. The combination of a pump, the oil and air reservoir, a float therein, a pair of valves adapted to be'opened one by the rise the other by the fall of the float, an air-outlet from the reservoir controlled by one of said valves, and an air-inlet to the pump controlled by the other of said valves, substantially as described.

2. In an automatic regulator foroil-burning apparatus, the combination of a pump, the oil and air reservoir, a float therein, a pair of rocking valves connected to said reservoir, adapted to be opened one by the rise the other by the fall of the float, and both closed when the float is in a central position, an air-outlet from the reservoir controlled by one of said valves, and an airinlet to the pump controlled by the other of said valves, for the purpose and substantially as described.

3. In an automatic regulator for oil-burning apparatus, the combination of the reservoir, the chamber connected therewith, the valvecasings on opposite sides of the chamber, the rocking valves in said casings, a float in the reservoir, and a connection between said valves and said float, said valves being independently adjustable on said connection, all constructed and arranged to operate substantially as described.

t. The combination with a reservoir, of a casing attached thereto,similar opposite rocking valves in said casing, a rocking connection on which said valves are independently adj ust-able, a float attached to said connection, an air-exit from the upper part of the reservoir controlled by one valve and an air-inlet controlled by the other valve, said float opening one valve when it rises and the other valve when it falls, substantially as described.

5. The combination with achamber,of similar opposite valve-casings detachably secured thereto, similar rocking valves in said casings, a rocking connection on which said valves are independently adjustable, and a float secured to said connection,allconstructed and arranged to operate substantially as and for the purpose described.

6. The combination of the chamber, the opposite valve-casings detachabiy secured thereto, the conical rocking valves in said casings having ports adapted to register with ports in the casings; a sleeve in the chamber to which the inner ends of the valves are adj nstably secured, and a float attached to said sleeve, adapted to rock the same and valves, substantially as described. I

7. The combination ofthe oil and air reservoir, the supply-pump and, the governor for said pump controlled by the air-pressure in the reservoir; with the chamber attached to the reservoir at the oil-level, the opposite rocking valves attached to opposite sides of: said chamber,the rocking connection between said valves, the float attached to said connection, an air-exit from the upper part of reservoir controlled by one valve, and an airinlet to the pump controlled by the other valve, substantially as described.

8. The combination of the oil and'lair reser: voir, the supply-pump, and the governor for said pumpcontrolled by the air-pressure in the reservoir; with opposite valve-casings attached to the reservoirat the oil-line thereof,

the sleeve between said casings, the valves in said casings. projecting 'into and secured to opposite ends of the sleeve; the float attached to said sleeve, the air-inlet pipe to pump controlled by one of said valves, andthe air-out let from reservoir controlled by the opposite valve.

7 9. In an oil-burning apparatus, the combination of theoil and air reservoir, the supply-pump, the governor for said pump controlled-by the air-pressure in the reservoir; anda removable chamber attachedv to the reservoir at the oil-line thereof; With opposite removable valve-casings in opposite sides of said chamber,a sleeve in the chamber between said casings, the valves in said casin gs projecting into and ad justably secured to opposite ends of the sleeve, the float in the reservoir attached to said sleeve, and the air-inlet pipe to pump controlled by one of said valves, and theair-outlet fromreservoir controlled by the opposite valve, said valves,

being so arranged that one is closed when the other is open, and both closed when the fioat is in central position, substantially as and for In testimony that I myown 1am my signatnrein presence of two witnesses.

In presence of /WILLIAM F. NORTON, J12, JAMES'B. LAMP. 

